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c++ Programming Glossary: comparisonsFast String Hashing Algorithm with low collision rates with 32 bit integer http://stackoverflow.com/questions/114085/fast-string-hashing-algorithm-with-low-collision-rates-with-32-bit-integer string and reusing the integer would work well to speed up comparisons. The entire set of names is unknown and changes over time ...
http://stackoverflow.com/questions/12135518/is-faster-than You didn't specify but on x86 all of the integral comparisons will be typically implemented in two machine instructions A..
What is the difference between NULL, '\0' and 0 http://stackoverflow.com/questions/1296843/what-is-the-difference-between-null-0-and-0 0xDEADBEEF as these are seen by a compiler as normal comparisons. Null Characters ' 0' is defined to be a null character that..
http://stackoverflow.com/questions/17095324/fastest-way-in-c-to-determine-if-an-integer-is-between-two-integers-inclusive or care about but when you're only starting with two comparisons the chances of a huge improvement are pretty remote. The code..
Is there a standard sign function (signum, sgn) in C/C++? http://stackoverflow.com/questions/1903954/is-there-a-standard-sign-function-signum-sgn-in-c-c a manual specialization when appropriate. Accurate Simple comparisons with zero can maintain the machine's internal high precision..
The best cross platform (portable) arbitrary precision math library http://stackoverflow.com/questions/2568446/the-best-cross-platform-portable-arbitrary-precision-math-library the intermediate decimal results . What I appreciate Good comparisons on GMP MPFR decNumber or other libraries that are good in your..
Can anyone quantify performance differences between C++ and Java? http://stackoverflow.com/questions/313446/can-anyone-quantify-performance-differences-between-c-and-java I want to know if someone has done measurable performance comparisons between the two languages Where does Java fall short when compared..
Why is std::function not equality comparable? http://stackoverflow.com/questions/3629835/why-is-stdfunction-not-equality-comparable function that conversion may be used in equality comparisons and in other circumstances struct S operator bool return false..
Where can I get a “useful” C++ binary search algorithm? http://stackoverflow.com/questions/446296/where-can-i-get-a-useful-c-binary-search-algorithm T val Finds the lower bound in at most log last first 1 comparisons Iter i std lower_bound begin end val if i end val i return i..
namespaces for enum types - best practices http://stackoverflow.com/questions/482745/namespaces-for-enum-types-best-practices With enum class you will lose implicit conversions and comparisons to integer types but in practice that may help you flag ambiguous..
Flags to enable thorough and verbose g++ warnings http://stackoverflow.com/questions/5088460/flags-to-enable-thorough-and-verbose-g-warnings it likely is. Wfloat equal warns for safe equality comparisons in particular comparison with a non computed value of 1 . An..
http://stackoverflow.com/questions/5248571/is-there-const-in-c differences between const in C and C c c const language comparisons share improve this question There are no syntactic differences..
Is C# really slower than say C++? http://stackoverflow.com/questions/5326269/is-c-sharp-really-slower-than-say-c to anther . Will it really be that much slower I've seen comparisons done that show that C# might be even faster in some cases because..
http://stackoverflow.com/questions/5416414/signed-unsigned-comparisons unsigned comparisons I'm trying to understand why the following code doesn't issue.. For equality this doesn't matter 1 unsigned 1 . For other comparisons it matters e.g. the following is true 1 2U . EDIT References.. in relation to signed unsigned equality vs greater less comparisons make sense this is entirely subjective of course 1 1 means the..
Logical comparisons: Is left-to-right evaluation guaranteed? http://stackoverflow.com/questions/5683026/logical-comparisons-is-left-to-right-evaluation-guaranteed comparisons Is left to right evaluation guaranteed Is left to right evaluation..
Checking if a double (or float) is nan in C++ http://stackoverflow.com/questions/570669/checking-if-a-double-or-float-is-nan-in-c to the IEEE standard NaN values have the odd property that comparisons involving them are always false. That is for a float f f f will..
http://stackoverflow.com/questions/75191/what-is-an-unsigned-char value is treated as signed or unsigned. Beware character comparisons through inequalities although if you limit yourself to ASCII..
Operator< and strict weak ordering http://stackoverflow.com/questions/979759/operator-and-strict-weak-ordering could also e.g. apply it to a vector of T iterating over comparisons of a i a i 1 a i 1 a i . An alternate expression of the algorithm..
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